Photographic camera.



No. 689,792. J Paten'ted non. v24, |901.

H. B. CARLTON c. J. GnnDAnn. PHOTOGRAPHIG CAMERA.

v (Application led Feb. 1, 1901.) (No Model.)

in: noams Farsi oo.. vuoto-wma., wAwmamN. o. d.

Nm 689,792.V Patentednec. 24, 190|.

H. B. cALToN L J. GonnAnn. I

' PHOTOGBAPHIC CAMERA.

l (Application led Feb. 1, 1901.) (No Model.) l l 2 Sheets- Sheet 2.

UNiTED STATES;

PATENT Fries.

HAR` EY B. CARLTON AND JOSEP-H GODDARD, OF ROCHESTER, NEW YORK; SAIDGODDARD ASSIGNOR TO SAID CARLTON.

PHoToGRAPHic CAMERA.

SEGXFICA'IIGN forming` part of Letters Patent No.' 689,792, datedDecember 24, 1901.

` Application iiled February l, 1901. Serial No. 45,638. v (No model.)

To a/ZZ whom, it muy concern:

Be it known that we, HARVEY B. CARLTON and JOSEPH GODDARD, citizens ofthe United States, residing at Rochester, in the county of Monroe andStateof NewYork, have invented new andl usefullm'provements inPhotographic Cameras, of which the following isa specification.

Our invention relates to improvements in 1o photographic cameras adaptedto contain aud expose a continuous sensitive film, and has for itsobject to provide a novel arrangement ofthe nlm-spool and take-up rollwith relation to the exposing or dark chamber in connection with aswinging film-guide for facilitating the Stringing or training of theiilm from the film-spool about the film-guide and onto the take-up roll.

Our invention has for its further object the zo provision of a novelarrangement of stop mechanism to operate in connection with a ilm of theinvention of John A. Robertson, of Rochester, New York, as set forth inhis application, Serial No. 45,643, iiled April 1, z5 1901, whereby therotation of the film-spool at intervals between the several exposure ornegative surfaces of the lm is automatically stopped and whereby thewithdrawal of just the required amount of `film for a given `exposure ornegative is permitted and the withdrawal of an excessive amountprevented.

The invention also has for its object a novel arrangement of indicatorin combination with thestop mechanism.

To the ends stated the invention consists 'in a camera constructed andarranged as hereinafter described, reference being made to theaccompanying drawings.

That which is Yregarded as new is set forth in the clauses of the claim,appended to the specification.

Inthe accompanying drawings, Figure 1 is a perspective view of thecamera, the filmspool and take-up roll being removed. Fig. 2 is asectional view showing the manner of mounting the take-up roll; Fig. 3,a similar View showing thegmanner of mounting the film-spool. Fig. 4 isa detail View of the indicating mechanism. Fig. 5 is a verticalsectional view of the camera. Fig. 6 is a detail perspective Viewshowing the end of the filmspool and the stop mechanism in engagementtherewith, and Fig, 7 is a detail View showing the spring-hingedstandards forthe filmspool and take-up roll and yillustrating thelm-guidepivoted transversely of the camera-box- Figs. 8 and 9 are detailviews, the latter partly in section.

In the said drawings the reference-numeral 1 designates a camera box orcasingr which, 6o while adapted to accommodate elements of a sizesuitable for taking large pictures, is of very little depthaconsideration of importance to the compactness and convenientportability of the camera and which is permitted by our novelarrangement and location of the film-spool and take-up roll.

The camera casing or box-1 is divided into two compartments 2 and 3,separated by a dividing-partition 4. Of these compartment-s 7o thelarger, 2, is an exposing-chamber and adapted to'receive and house thelens-carrier bellows 5 and appurtenances,which are shown conventionallyonly, as their construction is not different from likek parts of knowncameras. The other compartment, 3, is a rollholding compartment 'andreceives the filmspool 6 and take-up roll 7, which are arranged thereincontiguous or close to each other, as shown. This compartment and thecontents 8o thereof are arranged or located at one side of and in thesame plane with the exposingchamber, and by the disposition ofcompartments and contents great compactness Ais secured. Both thefilm-spool and take-up roll are supported at one end on stud-journalsAS,carried by standards 9, which are hinged to v the outside of the camerafor the purpose of permitting the convenient withdrawal of thestud-shafts from lthe sockets 10 of the iilm- 9o spool and take-up rollwhich receive said studs. The studs project into the interior of thecamera-casing through holes 11, formed in the side wall thereof, andenter the sockets of the hlm-spool and take-up roll, being normally heldin engagement with the sockets 10 by the springs 12 of the standards 9.The other ends of said spool and roll are provided with angularlug-sockets 13, which receive similarly shaped lugs 14, projecting roofrom ratchet-wheels 15. The ratchet-wheels 15 are rotatably mounted inthe side wall of the camera-box, and that of the take-up roll isprovided with a key K, by which it may be rotated to withdraw the filmfrom the spool and wind the same upon itself. A springpressed pa wl 16is mounted on the said wall of the camera and engages the ratchet of thetake-up roll, permitting take-up rotation of said roll, but preventingreverse rotation. By these devices the film-spool roll are journaled andoperated to supply the film for exposure and receive it after exposure.

The numeral 17 indicates a film-guide about which the film is trained inits passage from the film-spool to the take-up roll. This guide liesacross the exposing chamber or compartment 3 of the camera, whereby inmoving from the film-spool to the take-up roll the film traverses theexposing-chamber in which each negative or exposure surface comes torest for the exposure. The film-guide is pivotally hung transversely ofthe camera box or casing, along a side wall thereof, as shown at 18, oradjacent the dividing-partition 4, whereby it may be swung out from itsposi: tion across the exposure-chamber to facilitate the training orStringing of the film therearound in its passage from the film-spool tothe take-up roll. In the first-mentioned arrangement the guide swingsacross the line of film travel and in the latter in such line. In Figs.1 and 2 the pivotal connection of the film-guide is a hinge, while, asmore clearly shown in Fig. 7, it is in the form of au open pivot-socket17;, with which the film-guide is provided, fitting one of the rollers20, hereinafter referred to, whereby, if desired, the filmguide may beentirely removed when arranging the film or for other purpose.

It will be seen that the hinged or swinging film-guide simplifies andrenders expeditious the operation of passing the film from the spoolover and around the guide and attaching it to the take-up roll, andespecially is this so where the said guide is arranged to swing acrossthe line of travel of the film-for instance, to a side wall of thecamera-as with this arrangement the operation is very simple and isaccomplished byswinging the guide away from its position across theexposingchamber, pulling a length of film approximately a little morethan twice the length of the face of the guide, and then swinging thelatter upon the film across the exposing-chamber and turning the freeend of the film back upon the guide and attaching it to the takeup roll.That part of the film which rests against the front face of the guidewill now be in the proper focal plane.

The film-guide is rounded at its edges, the rounded formation beingafforded in the eX- ample shown in the drawings by rollers or rotatablesleeves 20, mounted upon spindles at the edges of the guide. Theserounded formations, and particularly the roller or rotating-sleeve formthereof, permit the film to travel easily and with no appreciablefriction and take-up y and avoid the possibility of the film beingcaught at any point and being rumpled or otherwise damaged.

The film 21 is provided at intervals, according to the dimensions of theseveral exposure or negative surfaces thereof and markin g thedivisional lines between such surfaces, with recesses 22, whichcooperate with the stop mechanism next to be described in locking thefilm-spool from rotation when a given negative or exposure surface hasbeen wound from said spool and presented across the exposure-chamber forexposure. We make no claim to the film having this constrnctionper se,as the same is the invention of another. This part of our inventionresides in a novel construction and arrangement of stop mechanismcooperating with and permitted to operate by such a film.

In the film-holder chamber 3 is arranged a two-arm rock-lever 23,pivoted at one end to the dividing-partition 4t, and at its other andfree end a nose 24 projects into the path of travel of the film. Thislever is provided intermediate its ends with a dog 25, adapted to engagethe ratchet of the film-spool and lock the latter from rotation. Thetendency of the dog 25, under the infiuence of a spring 26 acting on therock-lever, is to be in engagement with the ratchet at all fimes; but itis normallyT held out of engagement therewith by the film. The nose ofthe lever 23 rests against the edge of the film as it passes from thefilm-spool, and thus normally holds the dog 25 out of engagement withthe ratchet of said spool, the latter being free to rotate. When,however, in the unwinding of the film the requisite amount foranexposure has been withdrawn and a stop-recess 22 arrives opposite thenose of the lever, the latter, under the impulse of the spring 26,enters the recess, and the dog engages teeth of the filn1-spool, lockingthe latter from rotation and preventing further withdrawal of the filmuntil the locking engagement of the parts is released at the will of theoperator when it is desired to take a fresh exposure. In this way thecorrect presentation for exposure of the several negativesurfaces isaccomplished and mistakes liable to occur byinattention or lack of' careor skill in the operator avoided.

A film-guard is provided in line with the nose of the lever 23 andconsists of plates 17 one of the same being on the film-guide and theother on a suitable part of the camera, such as the bellows-frame F, andeach provided with-a raceway 17D for the nose, as best shown in Figs. 1,6, and 8. In the preferred form shown the free end of the lever 23 isoffset and passes between one of the plates 17a and the bellows-frame,its nose 24 spanning the passage between the plates 17 l and playing .inthe nose-races 17b thereof. In operation the film 21 passes between thetwo plates, as clearly shown in Fig. 9, and when a stoprecess thereofcomes opposite the nose of the lever engages the same, as beforedescribed.

IIO

The film-guard supports the iilm at each side of the point of engagementand prevents tearing or other marring ofthe film. We regard thisarrangement as a valuable feature of invention Whether the film-guide bea swinging one or not.

The short arm of the rock-lever is provided with an incline 27, withwhich a counterpart incline 28 at the end of a slide 29 is adapted toengage. This slide is provided with a handle-30, that extends through aslot in the casing, so that the incline 28 thereon may be thrown intoand withdrawn from engagement with the incline 27 on the rock-lever. Thefunction of this slide when the incline 28 is projected into operativeengagement with the incline 27 of the rock-lever is to oscillate saidlever on its pivot when the nose thereof is in engagement with astop-recess of the film and withdraw it from said recess and at the sametime Withdraw the dog 25 from engagement with the ratchet of thefilm-spool to enable a fresh exposure or negative surface to be un-Wound from the spool. The parts are held momentarily in this position toenable the stop-recess to pass out of the line of the nose of the lever,after which it is withdrawn and the nose of the lever rests upon theedge of the ilm during its travel until the next stoprecess arrives,when the locking operation is repeated. The withdrawal of the slide justreferred to may be accomplished by the operator retracting it manuallythrough the medium of the handle 30, or, if desired, the withdrawal mayb e effected by means of the springs 3l.

In connection with the stop and release mechanism we provide anindicating mechanism, which is operated by the movement of theslide-handle in releasing locking engagement of the dog and film-spool,to indicate the number of exposure or negative surfaces unwound from thespool. This indicating mechanismconsists of a disk 32, bearing suitablenumerals, which appear through a perforation 33 in the disk-cover 34.The said disk is mounted upon an axle 35, projecting from a plate 36,which also carries a spring-pawl 37 for preventing backward movement ofthe disk. The disk-cover 34: is provided with a slot 38, in which movesa iinger 39, carried by the handle of the slide and moving therewith.When the slide is projected to release the film-spool from the lockingmechanism, as described, this finger engages a tooth of theindicating-disk and rotates the latter a distance equal to that betweenthe numerals thereon, whereby at each operation a new numeral appears inthe observation-opening 33, by inspection of which the operator may knowhow t many exposures have been made and ascertain the exhaustion orapproach of exhaustion of the film.

Having thus described our invention, what' tion with a casing containingan exposingchamber and a film-holding compartment located at one sidethereof, of a swing filmguide arranged across the exposure-chamber,substantially `as described.

2. In a photographic camera, the combination with a casing containing anexposingchamber and a film-holding compartment located at one sidethereof, of a swing filmguide arranged across the exposure-chamber andadapted to be swung across the line of film travel, substantially asdescribed.

3. In aphotographic camera, the combination with a casing containing anexposurechamber and a film-holding compartment ar- -ranged at one sidethereof, of a swing filmguide arranged across the exposure-chamber andprovided with rounded edges, substantially as described..

4. In a photographic camera, the'combination with a casing containing anexposurechamber and a nlm-holding compartment located lat one sidethereof, of a swing filmguide arranged across the exposure-chamber, anda rotating sleeve at the edge of said guide over which the film passes,substantially as described. A

5. In a photographic camera, the combination with a casing containing anexposurechamber and a film-holding compartment, a hlm-spool and take-uproll arranged in said compartment contiguous to each other, and a swingnlm-guide arranged across the exposure-chamber, substantially asdescribed.

G. In a photographic camera, the combination with a nlm-carrier andmeans for locking the same from rotation, an element of which is adaptedto engage the film, of a filmguard at the point of engagement Vof suchelement with the film, substantially as described.

7. In a photographic camera, the combination-with a film-spool and meansfor locking the same from rotation an element of which is adapted toengage the film, of a bellowsframe and lm-guide provided with a guardfor the film at the point of engagement of such element with the lm,substantially as described.

8. In aphotographic camera, the combination with a film-carrier andmeans for locking the same from rotation an element of which is adaptedto engage the film, of a film-guard provided with a raceway for theengaging ele ment, substantially as described.

9. In aphotographic camera, the combination with a film-holdercompartment, of swingstandards arranged outside the camera-casing, andstud-journals projecting from said standards into said compartments,substantially as described. v

10. In aphotographic camera, the combination of a film-holdercompartment, of springhinged swing-standards arranged outside thecamera-casing, and stud-journals projecting IOO IIO

1l. In a photographic camera, the combination with a easing providedWith an exposingchamber and a film-holder compartment, ol' a swingfilm-guide extending across the exposing-chamber, a film-spool andtake-np roll arranged in the film-holder compartment, a ilm adapted tobe passed from said film-spool about said guide and be engaged with thetake-up roll, said film being provided with stop-recesses, and stopmechanism normally outof engagement with the film-spool and providedwith an element which automatically enters the stop-recesses in thefilm, whereby the stop mechanism is engaged with the spool and preventsits rotation, substantially as described. 4

l2. The combination with a film-spool and take-up roll, of aspringpressed rock-lever, one arm of which is adapted to engage the filmand the other arm provided with an yncline, a dog carried by said leverand adapted to engage the film-spool to lock the latter fromv rotation,and a slide provided with an incline to engage the incline of therock-lever for withdrawing the dog from engagement with said spool,substantially as described.

13. The combination with a ilm-spool and take-up roll, of aspring-pressed rock-lever one arm of which is adapted to engage thefilm, a dog carried by the lever and adapted to engage the spool to lockthe latter f rom rotation, and a slide to engage the other arm of vtherock-lever for withdrawing the dog from engagement with the spool,substantially as described.

14. The combination with a film-spool and take-up roll, of aspring-pressed rock-lever one arm of which is adapted to engage thefilm, and the other arm provided with an inoline, a dog carried by saidlever and adapted to engage the ilm-spool to lock the latter fromrotation, and a slide adapted to engage the incline of the rock-leverfor withdrawing eeenea` the dog from engagement with said spool,substantially as described.

I5. In aphotographic camera, the combination with a casin g providedwith an exposingchamber and a film-holder compartment, of a swingfilm-guide extending across the eX- posing-chamber, a film-spool andtake-up roll arranged in the film-holder compartment, a iilm adapted tobe passed from said film-spool about said guide and be engaged with thetake-up roll, said film being provided with stop-recesses, stopmechanism normally out of engagement with the iilm-spool and providedwith an element which automatically enters the stop-recesses in thelilm, whereby the stop mechanism is engaged with the spool and preventsits rotation, an indicating device, and a slide provided with means forengaging and withdrawing the stop mechanism and also with means forengaging and actuating the indicating device, substantially asdescribed.

1G. The combination with a hlm-spool and take-up roll, of aspringpressed rock-lever one arm of which`is adapted to engage the film,a dog carried by the lever and adapted to engage the spool to lock thelatter from rotation, an indicating device, and a slide provided withmeans to engage one arm 0i' the rock-lever to withdraw the other arm ofsaid lever from engagement with the film and provided also with an armfor engaging and actuating the `indicating device, substantially asdescribed.

In testimony whereof we have hereunto set our hands in presence of twosubscribing wtnesses.

HARVEY B. CARLTON. JOSEPH GODDARD.

Witnesses:

FRED D. MORGAN, JOHN A. RoBER'rsoN.

